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西南地区二叠系层序成因格架及储集体分布关系的研究表明，不同成因沉积盆地的层序内部构型及成因格架不同，其中储集体特征及分布亦各异。总体而言，该区二叠系层序格架中的有利储集体主要包括：①低水位体系域中的盆底斜坡扇、浪控三角洲砂体、河谷充填进积复合砂体、混屑浊积岩、冲积扇砂体、丘礁组合；②海侵体系域中的浅滩及障壁滩砂体、河口湾砂体、潮控三角洲砂体、扇三角洲砂体、丘礁滩组合、火山碎屑浊积岩、浊积扇及扇三角洲砂体；③高水位体系域中的河控三角洲、冲积扇河道砂体、扇三角洲砂体、钙屑重力流沉积、丘礁滩组合、滩坝砂体、白云岩；④与层序界面有关的岩溶储层，包括界面上的残积相、界面及下伏的岩溶角砾岩体系。
The research on the genesis framework and reservoir distribution of Permian in Southwest China shows that the sequence structure and genesis framework of sedimentary basins in different genesis are different, and the characteristics and distribution of reservoirs are also different. In general, the favorable reservoirs in the Permian sequence framework of the area mainly include: (1) the basin bottom ramp fan in the low-water system tract, the wave-controlled deltaic sand body, the valley filled sedimentary complex sand body, Sedimentary rocks, alluvial fan sand bodies and mound reefs. ② The shoal and barrier beach sand body, estuary sand body, tidal deltaic sand body, fan deltaic sand body, reef-shoal bank combination in the transgressive system tract, volcaniclastic Turbidites, turbidite fans and fan deltaic sand bodies; ③ river control delta, alluvial fan channel sand bodies, fan deltaic sand bodies, calcium carbide gravity flow deposition, reef-shoal bank combination, , Dolomite; ④ karst reservoirs related to the sequence boundaries, including the facies, interface and underlying karst breccia system on the interface.